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논문 기본 정보

자료유형
학술대회자료
저자정보
신윤혁 (자동차부품연구원) 김대건 (자동차부품연구원) 임동현 (자동차부품연구원) 김성철 (자동차부품연구원) 손석우 (지엔원)
저널정보
한국자동차공학회 한국자동차공학회 추계학술대회 및 전시회 2012년 한국자동차공학회 학술대회 및 전시회
발행연도
2012.11
수록면
359 - 364 (6page)

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초록· 키워드

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Generally, when internal combustion engine is started, its cooling system operated in connection with engine provides excessive cooling, resulting in unnecessary energy consumption and excessive exhaust gas emission. In case of high engine speed, excessive cooling makes combustion efficiency decrease. To enhance the efficiency of combustion engine in these case, effective control of cooling system according to operating conditions of engine can be realized by changing mass flow rate of coolant using electromagnetic clutch water pump. We designed two types of water pump; planetary gear type water pump which can reduce rotation speed of water pump by 65%, compared with pulley and on/off type water pump which can stop operation of impeller. Performance evaluation consists of warm-up test and NEDC driving performance. Warm-up test result shows that the time-shortening effect of planetary gear water pump and on/off water pump was improved by 7.3% and 24.7% respectively, compared with that of conventional base water pump. And NEDC test result shows that the fuel consumption of planetary gear water pump and on/off water pump, compared with base water pump, was improved by 7.3% and 4.0%, respectively. It is estimated that application of clutch water pumps will contribute to the improvement of engine cooling system performance, whose enhancement of fuel consumption rate is similar to that of electric water pump.

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Abstract
1. 서론
2. 실험 장치 및 방법
3. 실험 결과
4. 결론
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UCI(KEPA) : I410-ECN-0101-2014-556-000417907